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Finding the Fourth Proportional to 321,908.77, 444,230.89 and 178,665.13

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Solution

The fourth proportional to 321,908.77, 444,230.89 and 178,665.13 is: 246,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,908.77 : 444,230.89 = 178,665.13 : x
  2. Step 2: Convert to fraction form
    321,908.77/444,230.89 = 178,665.13/x
  3. Step 3: Cross multiply
    321,908.77x = 444,230.89 × 178,665.13
  4. Step 4: Simplify right side
    321,908.77x = 79,368,569,711.87
  5. Step 5: Solve for x
    x = 79,368,569,711.87/321,908.77
  6. Step 6: Final answer
    x = 246,556.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.